<pre class="card card-block card-header">{{ myForm.value | json }}</pre>
<form [formGroup]="myForm" class="form-inline">
  <div class="form-group">
    <div class="btn-group" btnRadioGroup formControlName="radio">
      <label btnRadio="A" class="btn btn-primary"
             tabindex="0" role="button">A</label>
      <label btnRadio="B" class="btn btn-primary"
             tabindex="0" role="button">B</label>
      <label btnRadio="C" class="btn btn-primary"
             tabindex="0" role="button">C</label>
    </div>
  </div>
</form>
